% pip3 install https://github.com/pybrain/pybrain/archive/0.3.3.zip Downloading/unpacking https://github.com/pybrain/pybrain/archive/0.3.3.zip Downloading 0.3.3.zip (unknown size): 1.5MB downloaded Running setup.py (path:/var/folders/dy/ffm11v7n3_16xbw15wlbxwbm0000gn/T/pip-157eupyx-build/setup.py) egg_info for package from https://github.com/pybrain/pybrain/archive/0.3.3.zip Requirement already sa